Papers

Ren Zhang, Xiao-Yu Ouyang, Xu-Dong Dai +1 more·Jan 27, 2026

We develop a Floquet transfer matrix method to solve scattering in extended 1D Floquet lattices, uncovering an underlying conjugate symplectic structure that enforces current conservation across sidebands. By engineering a spatial adiabatic boundary,...

Satoshi Kanno, Yoshi-aki Shimada·Jan 27, 2026

We present a new geometric perspective on quantum error correction based on spectral triples in noncommutative geometry. In this approach, quantum error correcting codes are reformulated as low energy spectral projections of Dirac type operators that...

Si-Qi Chen, Qi-Tao Duan, Teng Li +1 more·Jan 27, 2026

Accurate frequency estimation of oscillating signals over a broad bandwidth is a central task in quantum sensing, yet it is often compromised by spurious responses to higher-order harmonics in realistic multi-frequency environments. Here we experimen...

Hsuan-Jui Su, Shao-Cheng Fang, Ting-An Li +3 more·Jan 27, 2026

We present a Rydberg atom-based microwave electric field sensor that achieves extended dynamic range and enhanced sensitivity across a broad bandwidth. By characterizing the Autler-Townes (AT) splitting induced by a single-tone microwave field, we de...

Kaiwen Weng, Zhaoyuan Meng, Guohui Hu·Jan 27, 2026

The nonlinear Schrödinger equation (NLSE) is a fundamental model that describes diverse complex phenomena in nature. However, simulating the NLSE on a quantum computer is inherently challenging due to the presence of the nonlinear term. We propose a ...

Jia-Chen Tang, Xu-Yang Hou, Yu-Huan Huang +1 more·Jan 27, 2026

We investigate the post-quench dynamics of the quantum geometric tensor (QGT) of 1D periodic systems with a suddenly changed Hamiltonian. The diagonal component with respect to the crystal momentum gives a metric corresponding to the variance of the ...

Enhao Bai, Tianyi Wu, Huankai Zhang +7 more·Jan 27, 2026

We analyze mismatch in the inverse-squeezing Kennedy receiver for binary displaced squeezed vacuum state discrimination. Mismatch is shown to be equivalent to a residual squeezing after nulling, which modifies the output photon-number statistics and ...

Xiao-Bo Yan, Liu Yang, Bing He·Jan 26, 2026

The phenomena of induced transparency, with the typical examples of electromagnetically induced transparency (EIT) in atomic media and those based on coupled optical resonators, have attracted tremendous interest since their discoveries. Owing to the...

Tim Pokart, Lukas König, Sebastian Diehl +1 more·Jan 26, 2026

We investigate and compare two particle number conserving protocols for the preparation of a topologically nontrivial state. The first is derived from thermally coupling the system to a cold bath, while the second is based on engineered dissipation. ...

Kaifeng Bu, Weichen Gu, Xiang Li·Jan 26, 2026

In this work, we study the Hamiltonian Decoded Quantum Interferometry (HDQI) for the general Hamiltonians $H=\sum_ic_iP_i$ on an $n$-qubit system, where the coefficients $c_i\in \mathbb{R}$ and $P_i$ are Pauli operators. We show that, given access to...

Vitaly Pronskikh·Jan 26, 2026

The preferred-basis problem and the definite-outcome aspect of the measurement problem persist even when the detector is modeled unitarily. Experimental data are represented in a Boolean event algebra of mutually exclusive records, while the theoreti...

Marine Demarty, Bo Yang, Kenza Hammam +1 more·Jan 26, 2026

Assessing whether a noisy quantum device can potentially exhibit quantum advantage is essential for selecting practical quantum utility tasks that are not efficiently verifiable by classical means. For optimization, a prominent candidate for quantum ...

Jeonghoon Park, Jeong San Kim·Jan 26, 2026

The one-shot zero-error classical capacity of a quantum channel is the amount of classical information that can be transmitted with zero probability of error by a single use. Then the one-shot zero-error classical capacity equals to the logarithmic v...

Katha Ganguly, Bijay Kumar Agarwalla·Jan 26, 2026

Continuous measurement of quantum systems provides a standard route to quantum trajectories through the successive acquisition of information which further results in measurement back-action. In this work, we harness this back-action as a resource fo...

M. Y. Abd-Rabbou, Irfan Siddique, Saeed Haddadi +1 more·Jan 26, 2026

Quantum Energy Teleportation (QET) constitutes a paradigm-shifting protocol that permits the activation of local vacuum energy through the consumption of pre-existing entanglement and classical communication. Nevertheless, the implementation of QET i...

Yuan-De Jin, Zheng-Fei Ye, Wen-Long Ma·Jan 26, 2026

We present a resource-efficient method based on repetitive weak measurements to directly measure the noise spectrum of a generic quantum environment that causes qubit phase decoherence. The weak measurement is induced by a Ramsey interferometry measu...

A. Boumali, N. Jafari, Y. Chargui·Jan 25, 2026

We develop a first-order Feshbach-Villars (FV) Hamiltonian framework for spin-0 relativistic quantum dynamics in the presence of Planck-scale kinematic deformations described within generalized doubly special relativity (G-DSR). Starting from a gener...

Arman, Prasanta K. Panigrahi·Jan 25, 2026

We investigate the estimation of dephasing-induced decoherence in continuous-variable quantum systems using non-Gaussian probe states. By purifying the open system, we identify optimal probes, specifically squeezed cat and symmetric squeezed compass ...

Bo Zhang, Yusuf Turek·Jan 25, 2026

The question of when the Kirkwood-Dirac quasiprobability serves as the most appropriate description for quantum measurements has remained unresolved, particularly across different measurement strengths. While known to generate anomalous weak values i...

Shan Gao·Jan 25, 2026

The Aharonov-Bohm (AB) effect highlights the fundamental role of electromagnetic potentials in quantum mechanics, manifesting as a phase shift for a charged particle in field-free regions. While well-established for static magnetic fluxes, the effect...